[linux-rt-devel:linux-5.12.y-rt-rebase 25/193] undefined reference to `kgdb_roundup_cpu'

[linux-rt-devel:linux-5.12.y-rt-rebase 25/193] undefined reference to `kgdb_roundup_cpu'

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-5.12.y-rt-rebase
head:   2664a7f5d3d24da4b2657a1e933181d376b77616
commit: 2a512a1ead84737d2e63920f022c4aa8106c1291 [25/193] console: add write_atomic interface
config: microblaze-randconfig-r003-20210407 (attached as .config)
compiler: microblaze-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git/commit/?id=2a512a1ead84737d2e63920f022c4aa8106c1291
        git remote add linux-rt-devel https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git
        git fetch --no-tags linux-rt-devel linux-5.12.y-rt-rebase
        git checkout 2a512a1ead84737d2e63920f022c4aa8106c1291
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=microblaze 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   microblaze-linux-ld: kernel/printk/printk.o: in function `console_atomic_unlock':
>> (.text+0x1324): undefined reference to `kgdb_roundup_cpu'

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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